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Sciarid Fly Nematodes (Fungus Gnat) Treats 12 sq.m

Product Code:
£10.99 £9.16
In stock

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Sciarid fly (also known as fungus gnat or compost fly) is a troublesome pest of houseplants and plants in greenhouses and conservatories.

The larval stage of the sciarid fly attacks the roots of plants and may cause the death of seedlings. These nematodes will attack the larvae which will in turn significantly reduce the Sciarid fly.

Easy to apply, just water the nematodes into the soil.

Completely harmless to children, pets and wildlife.

Suitable for use on fruit and vegetables and they can be eaten straight after application.




Treats 12 sq.m

Application time: April to August (Applying outside of this timeframe may still aid the control). Can we used all year around indoors on house plants.

How to apply: Apply as a drench around roots of the plants or where pest is present. Apply to moist soil and water in. You can apply using a watering can with a course rose head or use a hose end applicator for larger areas.

Frequency of application: Repeat applications are required to control the pest.

Please note Nematodes are live material and cannot be returned. They will usually have an expiry date of around 2 weeks. The effectiveness can sometimes vary due to external factors.






Nematodes should be used as soon as possible after deliver. They should be stored between 4 to 8 degrees Celsius (fridge) until the expiry date on the package (usually around two weeks). Do not freeze or expose to high temperatures.

The soil should be moist for two weeks. Apply in the evening, when overcast or during rainfall. The soil temperature must be above 8 degrees for at least several hours per day. Water immediately after application.

Apply the nematodes with a watering can or sprayer. Appy between March - October. Can be used outside these dates if used inside or in a greenhouse.

Application instructions: 
1. Fill up a small container (ideally a jug) with 200ml of water. Slowly pour the nematodes into the water whilst stirring the solution to ensure all lumps are dissolved. Rinse the inside of the pack as nematodes often cling to the packaging.
2. Fill up a container with 1 litre of water and slowly pour in the 200ml solution whilst stirring. You now have your concentrated solution.
3. Fill up a container with 5.4 litres of water and add half of the concentrated solution (600ml). You now have 6 litres of the diluted solution which will treat 6sq.m. Apply this to the area you want to treat.
4. Repeat step 3 to cover the remaining 6sq.m.

When ordering just nematodes, delivery is free of charge.
For all other items, we will either charge £4.98 for standard items, £6.99 for large items and £14.99 for oversized items.
The correct delivery charge will be applied in the checkout.
*some additional charges can be applied for larger and heavier items to highlands and islands.